<VV> Carb throttle shaft bushing

[corvairs]

Richard - I know that many years ago  Bob Heinrichs of Richland WA used 
to sell  full length brass sleeves for carb repair - in fact, when we 
bought Bob out after his death, we got a bunch of those sleeves (which 
we still have). Bushing carb bodies is not the best solution. First, 
unless  the work is done by a machine shop with at least a proper 
alignment fixture for a drill press (milling machine preferred here) a 
do-it-yourselfer will almost always end up with a final "repair" worse 
than what he started with. Second, this involves a non-reversable major 
modification to the carb body.

What most of us have been doing the past 10 years or so is to simply 
replace the carb shaft with a new repro shaft. It's interesting that 95% 
of the wear that occurs is on the chromed brass shaft and not the 
aluminum carb body. This odd point fits neatly with the recent posts 
about similar/dissimilar metals...... Lon

www.corvairudnerground.com
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Rburger wrote:

>Gentlemen;
>
>When I took my carburetor apart to install the shaft seal kit I got from CU, I made an interesting discovery. The throttle shaft had a brass bushing installed along its entire length. I'd estimate the bushing is about .010 thick. Naturally, the carb body had been reamed oversize to accommodate the bushing, which made installation of the seal kit a little more complicated than I had anticipated. The difficulty was not insurmountable, though it may have compromised the effectiveness of the kit to some extent. My question is: have any of you seen such a bushing or repair kit that incorporated such? If you have, do you know where to get a replacement? If you haven't, can you advise about a source, perhaps not necessarily connected with the automotive aftermarket? E.G., is there a supply somewhere of various lengths of brass tubular bushing material in various combinations of ID and OD?  
>
>One other question: I replaced the cup on the accelerator pump on the same carb, but it did little to improve the operation of the pump. Does the pump bore wear, rendering the pump more or less permanently inop? I quadruple checked the appropriate passages in the carb and the float drop and float level are to spec. Suggestions?
>
>You guys truly are the best; an island of sanity and sensibility in an automotive hobby that increasingly often seems awash in incomprehensible nonsense.  
>
>Thanks,
>
>Richard Burger  
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